Did you run into any bugs or strange beahviour in Cloud Haskell? I looked into using it a while ago and came to the (possibly hasty) conclusion that it's not stable enough to build a large project on. Thanks!
None. It was rock solid; never a hiccup. It's evolving, but it seems quite well written and correct. As with many Haskell libraries in "beta", it works perfectly even though it's not finalized.